Dynamics and control of fluid-structure-free surface interactions. This project aims to research the apparently opposing effects of vortex shedding and free surface damping, individually and jointly, and the control or excitation of the vibrations for two generic bluff bodies: the cylinder and the sphere. Flow-induced vibrations of bluff bodies under or piercing water surfaces can damage floating off-shore marine structures and tethered bodies. On the other hand, harvesting energy from ocean cur ....Dynamics and control of fluid-structure-free surface interactions. This project aims to research the apparently opposing effects of vortex shedding and free surface damping, individually and jointly, and the control or excitation of the vibrations for two generic bluff bodies: the cylinder and the sphere. Flow-induced vibrations of bluff bodies under or piercing water surfaces can damage floating off-shore marine structures and tethered bodies. On the other hand, harvesting energy from ocean currents needs large flow-induced vibrations. The intended outcomes are new modes of body vibration, wake transitions and means to control fluid-structure interactions. This research could benefit many processes in offshore marine engineering, submarine bodies and mixing vessels, where understanding and controlling fluid-structure interactions of bluff bodies can mitigate costly and dangerous induced vibrations.Read moreRead less
Wake Transitions and Fluid-Structure Interactions of Rotating Bluff Bodies. Flow-induced vibrations of bluff bodies can lead to severe damage in many applications, such as off-shore marine structures and tethered bodies. Rotation of bluff bodies can result in huge increases in lift forces, which may promote these vibrations, whereas a nearby free surface may stabilise the vibrations. This project aims to discover the mechanisms underpinning the apparently opposing effects of vibration and free s ....Wake Transitions and Fluid-Structure Interactions of Rotating Bluff Bodies. Flow-induced vibrations of bluff bodies can lead to severe damage in many applications, such as off-shore marine structures and tethered bodies. Rotation of bluff bodies can result in huge increases in lift forces, which may promote these vibrations, whereas a nearby free surface may stabilise the vibrations. This project aims to discover the mechanisms underpinning the apparently opposing effects of vibration and free surface, individually and jointly, and the excitation of two- and three-dimensional instabilities in the wakes of two generic bluff bodies: the cylinder and the sphere. The expected outcomes are the discovery of new modes of body vibration, wake transitions and means to control fluid-structure interactions.Read moreRead less
Dynamics of bluff body interactions with walls. Spherical bodies are continually impacting or rolling on solid surfaces, from leukocytes to dust grains to golf balls, and larger. A joint Australian-French team will pioneer new research on the flow and mixing created by these bodies and understand the role these play in important commercial and environmental flows.
Advanced fluid mechanics modelling of complex leukocyte-endothelial interactions. This project adopts an interdisciplinary approach toward understanding the mechanical interactions between blood cells and vessel walls, under different hydrodynamic conditions. Outcomes will have downstream benefits to vascular biology in relation to diagnosis of problems such as atherosclerotic plaques. These vascular problems are associated with several major health problems including coronary heart disease, h ....Advanced fluid mechanics modelling of complex leukocyte-endothelial interactions. This project adopts an interdisciplinary approach toward understanding the mechanical interactions between blood cells and vessel walls, under different hydrodynamic conditions. Outcomes will have downstream benefits to vascular biology in relation to diagnosis of problems such as atherosclerotic plaques. These vascular problems are associated with several major health problems including coronary heart disease, hypertension, stroke, diabetes and kidney dysfunction.Read moreRead less
Characterisation and Stability of Thin Electrowetting Films. Electrowetting is of importance to numerous industrial, biomedical and daily life settings such as microfluidic biopharmaceutical applications, coating technology, electronic displays, optical focusing devices, miniaturised chemical analysis systems for homeland security, etc. The work, aimed at generating an understanding of the complex hydrodynamic and physicochemical processes involved, is fundamental research having generic benefit ....Characterisation and Stability of Thin Electrowetting Films. Electrowetting is of importance to numerous industrial, biomedical and daily life settings such as microfluidic biopharmaceutical applications, coating technology, electronic displays, optical focusing devices, miniaturised chemical analysis systems for homeland security, etc. The work, aimed at generating an understanding of the complex hydrodynamic and physicochemical processes involved, is fundamental research having generic benefits to researchers in interfacial science, electrokinetics and microfluidics. The results will also be beneficial to industrial workers in providing engineering protocols for the development of these devices by identifying optimal conditions for fluid manipulation without prone-to-wear mechanical components. Read moreRead less
Heat Transfer Characteristics of Biological Tissues with Nanoparticles. Heat transfer of laser-irradiated nanoparticles in biological tissues requires a basic knowledge of the unique strong resonance absorption properties and a fundamental understanding of the thermal and chemical conversions as a consequence of these heated nanoparticles. This project aims to investigate the extent of the non-equilibrium heating effects of heated nanoparticles on the destruction of biological tissues. Comprehen ....Heat Transfer Characteristics of Biological Tissues with Nanoparticles. Heat transfer of laser-irradiated nanoparticles in biological tissues requires a basic knowledge of the unique strong resonance absorption properties and a fundamental understanding of the thermal and chemical conversions as a consequence of these heated nanoparticles. This project aims to investigate the extent of the non-equilibrium heating effects of heated nanoparticles on the destruction of biological tissues. Comprehensive experimental studies and computational modelling to be performed are expected to significantly enhance the understanding of laser-induced heating phenomena of embedded nanoparticles in biological tissues and the prediction of the level of destruction that can be experienced by these heated nanoparticles.Read moreRead less
Natural convection induced exchange flows between near shore and central regions of reservoirs. Inland discharges into reservoirs often carry rich nutrients, pollutants and biological species into the coastal regions, which are redistributed across the central regions of reservoirs through dynamical mixing processes. One of the important mixing processes is the horizontal exchange flow between the near shore and central regions induced by diurnal heating and cooling through the water surface, wh ....Natural convection induced exchange flows between near shore and central regions of reservoirs. Inland discharges into reservoirs often carry rich nutrients, pollutants and biological species into the coastal regions, which are redistributed across the central regions of reservoirs through dynamical mixing processes. One of the important mixing processes is the horizontal exchange flow between the near shore and central regions induced by diurnal heating and cooling through the water surface, which is classified as a natural convection process. This process will be investigated in this project through a closely linked analytical, experimental and numerical research program. The output from this research will have direct application in water quality management and environmental planning.Read moreRead less
Characterization of mechanical behaviour of TiO2 nanotube thin films. Vertically aligned titanium oxide (TiO2) nanotube arrays have demonstrated remarkable properties for application in dyesensitised solar cell, photocatalysis, self-cleaning coating, purification of pollutants and orthopaedic implants. More excitingly, their architecture and dimensions can be precisely controlled using anodisation of titanium (Ti), creating considerable scientific interest and practical importance. This project ....Characterization of mechanical behaviour of TiO2 nanotube thin films. Vertically aligned titanium oxide (TiO2) nanotube arrays have demonstrated remarkable properties for application in dyesensitised solar cell, photocatalysis, self-cleaning coating, purification of pollutants and orthopaedic implants. More excitingly, their architecture and dimensions can be precisely controlled using anodisation of titanium (Ti), creating considerable scientific interest and practical importance. This project aims to develop novel techniques for determining the mechanical behaviour of TiO2 nanotube arrays and its dependence on crystal structure and geometrical parameters. The outcomes are expected to provide solutions to development of robust TiO2 and other nanotube arrays for broad applications in sustainable energy and tissue engineering.Read moreRead less
Biodegradable immuno-therapeutic nanoparticles. The national benefit relates directly to Promoting and Maintaining Good Health through preventative healthcare as this project will develop a new vaccine delivery platform that will contribute to preventing a host of diseases such as viral infections and malaria. The health benefits of better vaccines directly enhance a Healthy Start to Life and Ageing Well. This area of nanoparticle therapies is a global 'hot spot' and this multi-disciplinary team ....Biodegradable immuno-therapeutic nanoparticles. The national benefit relates directly to Promoting and Maintaining Good Health through preventative healthcare as this project will develop a new vaccine delivery platform that will contribute to preventing a host of diseases such as viral infections and malaria. The health benefits of better vaccines directly enhance a Healthy Start to Life and Ageing Well. This area of nanoparticle therapies is a global 'hot spot' and this multi-disciplinary team could make huge and rapid progressions in this area of therapeutics. New intellectual property in the area of therapeutic particle production is the cornerstone of this project and could deliver lasting economic benefits through the creation of new health products and patents.Read moreRead less
Turbulent wall-bounded flow in adverse pressure gradient environments. This research will create additional research capacity in turbulence control and drag reduction. It will have direct benefits to the Australian economy via the transport industry by reducing the adverse impact of the carbon tax and rising fuel prices on long-haul air, water and road transport, on which Australia is disproportionately reliant.